/*
//  NSObject-BlockExtension.m
//
//	Copyright (c) 2009 Jim Turner <jim@nukethemfromorbit.com>
//
//	Permission is hereby granted, free of charge, to any person obtaining a copy
//	of this software and associated documentation files (the "Software"), to deal
//	in the Software without restriction, including without limitation the rights
//	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//	copies of the Software, and to permit persons to whom the Software is
//	furnished to do so, subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in
//	all copies or substantial portions of the Software.
//
//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//	THE SOFTWARE.
//
//  Tons of ideas for this stuff gleemed from Mike Ash's Practical Blocks post:
//		http://mikeash.com/?page=pyblog/friday-qa-2009-08-14-practical-blocks.html
*/

#import "NSObject-BlockExtension.h"
#import <dispatch/dispatch.h>

@implementation NSObject (NSObject_BlockExtension)

-(void) ntfo_BlockExtentionCallback:(id)anObject
{
	void (^block)(id obj) = (id)self;
	block( anObject );
}

// If we have no argument, use GCD to dispatch our call. No timer overhead.
// Note that the block is still copied, it's just done for us.
-(void) executeAfterDelay:(NSTimeInterval)delay handler:(NoParameterBlock)block
{
	dispatch_after( dispatch_time( DISPATCH_TIME_NOW, delay * 1000000000 ), 
				    dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_DEFAULT, 0 ), 
				    block );
}

// The withObject: parameter is most likely unnecessary as the block will have already noted everything
// referenced in the enclosing scope in which it was created. 
-(void) executeAfterDelay:(NSTimeInterval)delay withObject:(id)anObject handler:(OneParameterBlock)block
{
	[self executeAfterDelay:delay withObject:anObject inModes:[NSArray arrayWithObject:NSDefaultRunLoopMode] handler:block];
}

-(void) executeAfterDelay:(NSTimeInterval)delay withObject:(id)anObject inModes:(NSArray *)modes handler:(OneParameterBlock)block
{
	[[[block copy] autorelease] performSelector:@selector( ntfo_BlockExtentionCallback: ) withObject:anObject afterDelay:delay inModes:modes];
}


@end
